Requires reporting of certain ownership information by: (1) a hospital to the Indiana department of health (state department); (2) certain health care entities to the secretary of state; and (3) an insurer, a third party administrator, and a pharmacy benefit manager to the department of insurance. Requires the secretary of state and the department of insurance to provide the ownership information to the state department. Requires the state department to annually publish a report concerning the ownership information. Amends the definition of "health care entity" for provisions governing health care entity mergers and acquisitions. Allows the office of the attorney general to investigate the market concentration of a health care entity.